The XpressTRX adjusts from 3.25″ to 16″ wide allowing it to fit nearly all scupper style kayaks. The padded uprights protect the hull from abrasion and firmly hold the kayak in place during transport. With a maximum load rating of 250 lb (113 kg), these carts can handle most sit-on-top recreational boats with gear. Constructed of tough marine grade aluminum and finished with a silver anodized surface for long term dependable service. Features include adjustable mark-proof rubber padding, corrosion resistant hardware and adjustable scupper post height for tough to fit boats.Each cart includes TRX airless tires that guarantee you will never be caught with a flat tire during portage. With the integrated push button wheel release system, the need for wheel retainer clips is eliminated. Product workmanship and material performance is included with our Lifetime Limited Warranty.Features:10″ TRX Airless “Never-Go-Flat” all terrain tiresHigh grip rubber tread works well over rough and rocky terrainPush button wheel release – No more clips to loseAdjustable width and heightCorrosion free and UV resistant constructionLifetime Limited WarrantySpecifications:Load Capacity: 250 lb (113 kg)Dimensions: 29″ x 6″ x 30″ highUpright diameter with foam 1.Upright diameter without foam 0.75Fits scupper hole distances (center to center) 3.25 to 16Frame: Marine Grade Anodized AluminumInstallation:Please review instructions and register your warranty prior to first time use.Whats In The Box:(1) Adjustable Frame(2) TRX Airless Tires(1) Instruction Manual